D. Practice using your ideas by predicting what would happen if the following undergo beta decay: (2 pts each) i. Carbon -10  +
ii. Cesium-137  +
iii. Thorium-234  +

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.